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renderdiff

Skill · npm · graded 2026-10-23Source linked

Visual-parity checker for website migrations: screenshot-diffs your branch against production across viewport widths, and names the DOM element and CSS property behind each change. Built for coding agents (Claude Code, Codex, Cursor).

No outside reports on file

renderdiff is distributed via npm (renderdiff); review its source code, dependencies, and requested permissions before use.

Based on public adoption and transparency signals as of Oct 23, 2026. Our opinion, not a code audit or security guarantee.

Was this verdict for Renderdiff helpful?

What it can access

  • Local filesNo local folder access notedLOW
  • Command executionNo shell command runner notedLOW
  • Network reachLocal or standard API callsLOW
  • CredentialsNo API token requiredLOW
  • Package sourcenpm (renderdiff)PUBLIC

Inferred from this listing’s public package details and description. Check the project’s source before installing.

Install

npx -y renderdiff

All setup options ↓

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About Renderdiff

Renderdiff is an agent skill focused on Developer tools and Web & browsing: Visual-parity checker for website migrations: screenshot-diffs your branch against production across viewport widths, and names the DOM element and CSS property behind each change. Built for coding agents (Claude Code, Codex, Cursor).

It is published on npm as renderdiff and hosted on GitHub at tmashara/renderdiff (726 weekly npm downloads, last repository push on 2026-10-23). Based on its public metadata, it operates with standard local or API scope without broad shell execution flags noted.

Setup

These use the package this listing points to. Check the project’s own instructions before running anything.

npm command

npx -y renderdiff

Why this grade

DD — High risk signals

Signal-based grade (1/7 points): public source code. This reflects adoption and transparency, not a code review.

Popularity and upkeep

23/100
Weekly npm downloads
726
Listing last refreshed
2026-10-28

These are public popularity signals, not a maintenance check. Look at the repository’s commit history and open issues.

Security reports

No reports found for this package in our research (last checked 2026-10-29).

Check a specific version →

Risks to watch for

  • Dependency & version pinning: Distributed via npm (renderdiff). Pin an exact release version or commit SHA rather than floating tags so upstream updates are reviewed first.

How to lower the risk

Least-privilege permissions

  • Give it access only to the specific folders, accounts or projects it needs, never your whole drive or admin account.
  • Use a separate, limited API key or login just for this tool so you can switch it off without affecting anything else.

Network isolation

  • Run it on a work computer or sandbox account, not one holding personal or company-sensitive data.
  • If your IT team can, limit which websites and services it is allowed to contact.

Monitoring

  • Check its activity history or logs weekly at first, and look at what it changed or sent.
  • Turn on alerts for new logins or unusual usage on any account it connects to.

Red flags to watch for

  • It asks for more access than its job requires, or prompts you to paste passwords.
  • It suddenly updates with new owners, or starts contacting unfamiliar websites.

Questions

How do I install Renderdiff?

Install Renderdiff with npm install renderdiff or run it directly with npx -y renderdiff. For agent integration and configuration flags, see the documentation at github.com/tmashara/renderdiff. Pin an exact version and pass --ignore-scripts if you want to block post-install hooks.

Are there security reports about Renderdiff?

No reports found for this package in our research (last checked 2026-10-29). Renderdiff currently holds Grade D (High risk signals) based on public adoption and transparency signals. Review the permissions and source repository before granting access to local files, shell commands, or API keys.

Is Renderdiff actively maintained?

Renderdiff has 726 weekly npm downloads, with its latest repository commit pushed on 2026-10-23. Our directory data was last refreshed on 2026-10-28. Check recent commit activity, release tags, and open issues at github.com/tmashara/renderdiff before pinning it in production.

What are alternatives to Renderdiff?

Compare Renderdiff side by side with similar skills in the Related tools section on this page, or browse all skills on AgentArmorHQ.

README badge and team notes

Maintain or use Renderdiff? Show its live grade in your GitHub README, docs site, or run a check from the terminal before you install.

AgentArmorHQ Risk Grade D for Renderdiff

GitHub README Markdown:

markdown
[![AgentArmorHQ Risk Grade for Renderdiff](https://agentarmorhq.com/api/badge/tmashara-renderdiff)](https://agentarmorhq.com/skills/tmashara-renderdiff)

HTML embed:

html
<a href="https://agentarmorhq.com/skills/tmashara-renderdiff"><img src="https://agentarmorhq.com/api/badge/tmashara-renderdiff" alt="AgentArmorHQ Risk Grade for Renderdiff" height="20" /></a>

Terminal check:

terminal
curl -fsSL https://agentarmorhq.com/api/cli | node --input-type=module - check "tmashara-renderdiff"

Share with your security lead

Need sign-off to use renderdiff? Copy this note for Slack, a ticket or a pull request.

### AgentArmorHQ Security Review Memo: renderdiff
- **Listing URL:** https://agentarmorhq.com/skills/tmashara-renderdiff
- **Type:** AI agent skill
- **Risk Grade:** Grade D (High risk signals)
- **Outside Security Advisories on File:** 0

#### Permission & Blast-Radius Signals
- **Local files:** No local folder access noted
- **Command execution:** No shell command runner noted
- **Network reach:** Local or standard API calls
- **Credentials:** No API token required
- **Package source:** npm (renderdiff)

#### Recommended Hardened Setup
- **Command:** `npx -y --ignore-scripts renderdiff`
- **Controls:** Pin an exact version in `.mcp.json`, scope access to a single workspace folder, and use a least-privilege read-only token where supported.

_Based on public adoption and transparency signals as of Oct 23, 2026. Our opinion, not a code audit or security guarantee._

Key facts

Type
AI agent skill
Publisher
tmashara
Source code
github.com/tmashara/renderdiff
Install command
npm install renderdiff
Est. context load
~85 tokens idle · ~1.4k tokens when active (on-demand skill)
Popularity
726 weekly npm downloads
Last updated
2026-10-28
Last graded
2026-10-23

Community

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